Graphite-separator.



D'. m T.. V. A D H. J.

GRAPHITE SEPARATOR. APPLICATION FILED MAYll, 1905.

' ATTO/NVE F ig. '2 is a side elevation thereof.

JOHN HENRY DAVlS, OF GLENS FALLS, NEW YORK.

GIRPHlTE-SEPRATOR.

Speccation of Letters Patent.

Patented Maren 27, 190e.

Application tiled May 11,1905. Serial No. 2605060.

To all whom, it mn/,l/ concern:

Be it known that l, JOHN HENRY Davis, a citizen of the United States, and a resident of Glens Falls, inthe county of Warren and State oi New York, have invented a new and Improved Graphite-Separator, of which the following is aiull, clear, and exact description.

My invention relates to an apparatus for separating graphite from pulverized ore containing it.

The principal objects of the invention are to provide means Jfor effectively separating both fine and coarse graphite and' retaining practically all of that material which may be in the ore, for collecting sand and other materials which may be included'with the graphite in the ore, to produce graphite in the pure marketable form, and to wash it clean from all foreign matters.

Further obiects of the invention will appear in the course of the Subjoined description. f

'Reference is to be had to the accompanying drawings, forming a part of this speciiication, in which similar charactersof reference indicate corresponding parts in all thegures.

Figure l is a plan of 2in-apparatus constructed in accordance with my invention. Fig. 3 is a longitudinal central sectional view; and Fig. 4 is a sectional view, on an enlarged scale, of the detail shown in Fig. 3.

The apparatus comprises a long trough o, having a series oipartitions b. At one end of. the trough is a hopper c for receiving the pulverized ore, the hopper being provided with a pipe d, through which water is forced into the hopper. This hopper is provided with a trough e, discharging into the first compartment of the main trough. The mainltrough is filled lwith water, and aside from that entering through the pipe d its level is kept up by a feeder f,'whch discharges through a series of pipes g into the several compartments of the trough. `Each pipe g is controlledby a cock h. At the top of each of the partitions is an inclined plate la. Each oi' these sharpened end 7c", which is located immediatelyunder the surface of the water in the compartment, and it is provided with a passage 7c2 for receiving water from just below the surface in order to collect and'carry away fine materials se arated from the ore. A discharge-passage a is provided longitudinally plates is provided with a through the plate and communicates with the passage k2. Below Athe last plate k isa dam Z, which extends down from the top of the trough to a point below the bottom of the plate.v This is provided for the purpose of forcing all materials on thefsurface of the water downwardly into the body oi the water. Discharge-outlets m are located in the end of the trough.

The operation will be readily understood. AThe ore is introduced into the hopper-f,l and water forced through the pi the same time being turne on through the various pipes g. The ore flowing down the trough e into the iirst compartment of the main trough is swept along, and the heaviestpart of the flowing materials sink to the b ottom, allowing thegraphite and fine materials to pass over the plate k. Some of thefme materials which are not light enough to remam upon the surface ofthe water pass through the passages k2 and out through the passages k3. The same operation occurs in each of the compartments until the dam l is reached, and by t at time practically all of the sand and gravel, as well as ne materials slightly heavier than the graphite, are separated out. The graphite is then collected in the last receptacle. The overiiow through the openings m provides for saving graphite'that is so fine that. it will pass through No. 21 boltingcloth. This insures the production of graphite in a marketable form and a saving of amaximum amount of it from the ore. The action of the passages k2 is caused by a current which Hows through a passage k3 to the outside of the trough, where it discharges into side troughs n on each side of the tank. The agitation of the water in the several compartments wouldpcarryine sand and -mud over e d, the water at the partitions if some suchlthing were not provided. Each compartment is provided with a door o, through whichthe sand'can be removed. Each door is provided with a locky ing means p.

`twill be observed that by the use of this apparatus the ulverized ore is accurately divi ed up, san of varying degrees of coarseness being collected in the several compartments of the trough, mud and ver ine sand being washedout through the si e troughs, and grap ite in a pure and marketable form being left in the rear end of the main trough, said graphite being entirely washed and freed from foreign materials.y

" trough,

water thereto, means for maintalnlng a water* -l ing-plate h aving its taining llavnig thus described my invention, I ing fine sand and mud from a pomt just becl aim as new and desire to secure by Letters Patent-- l Agraphite-separator, comprising a main trough, means for feeding graphite orc and water thereto, means for maintaining a wateelt-vel in the trough, and a series of partitions in the trough, each provided with a separating-plate having its front end located just below said water-level; each of said plates being provided with means for carrying away tine sand and mud from a point near the surface of the water.

2. A graphite-separator, comprising a main means for feeding graphite ore and level in the trough, and-a series of partitions in the trough, each rovided with a separatiifont end located just be low said water-level; each of said plates being provided with means for carrying away fine sand and mud from a point near the surface of the water, and each of said plates being located at a lower level than those between it and the point at which the ore enters.

3. Agraphite-separator, comprising'a main trough, means for feeding graphite ore and water thereto, means for maintaining a water-level in the. trough, a series of partitions in the trough, each provided with a separating plate having its front end located just below said Water-level, cach of said plates being provided with means for carrying away fine sand and mud from a point near the surface of the water, and a dam located be ond the last plate and extending downward y from a point above it.

4.. A graphite separaten' comprising a ugh having a partition, means forl maina water-level in the trough, and a ,plate located u on said partition and projecting inwardly t erefrom, the upper` surface of sadlate being inclined, said/platev being prov1 c with means for collecting and dischalw'g;

low the water-level.

5. A graphite separator comprisingl a trough having a partition, an inclined plate locatedbii said partition, said plate havingf a passage 'opening from a ointjust below the water-level and means flr conveying water from said passage to the outside of the trough.

6. A graphite separator comprising a trough having a partition, a plate located adjacent to said partition and projecting inwardl therefrom, the up er surface of said plate being inclined and tlie plate being provided with means for collecting and discharging fine sand and mud from a point just below the water-level.

7. Aseparator comprising a main trough, a series of artitions therein, .each being provided witli a separating-plate having its front end located just below the water-level, each of said plates being provided with means for carrying away fine sand and mud from a point near the surface of the water, and a dam located beyond the last plate and extending downwardly from a point aboveit.

8.- A separatorcom rising 'a main trough for containing water an a series of partitions in the trough, each provided with a separatingplate having its front end located just below the water-level, each of said plates being provided with means for carrying away fine materialv from a oint near the surface of the water, and eaclli of said plates being located on a lower level than the plates between it and the point at which the material to be operated .upon enters the main trou "-h. ntes'timony whereof have signed my name to this specification 1n the presence of two subscribing wltnesses.

JOHN HENRY DAVIS Witnesses:

' CHARLES H. HITCHCOCK,

.EDWARDMB thong-.31. 

